The Cameroon international was relegated with the Canaries last season, and his experience of the English top tier – the 28-year-old has also turned out for Newcastle and Tottenham – has attracted Warnock.

Bassong is rumoured to be available for as little as £2m, with the East Anglians having not used him once yet this season in the Championship.

Palace have already signed Brede Hangeland and Martin Kelly to bolster their backline this summer, but Warnock is still keen to get more bodies in as he plots to avoid a drop to the second tier.